431451442212052 has 96 divisors (see below), whose sum is σ = 780554826928800. Its totient is φ = 208584556357632.

The previous prime is 431451442211987. The next prime is 431451442212059. The reversal of 431451442212052 is 250212244154134.

It can be written as a sum of positive squares in 16 ways, for example, as 48730926408516 + 382720515803536 = 6980754^2 + 19563244^2 .

It is a junction number, because it is equal to n+sod(n) for n = 431451442211996 and 431451442212014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (431451442212059) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1943460274 + ... + 1943682262.

It is an arithmetic number, because the mean of its divisors is an integer number (8130779447175).

Almost surely, 2^{431451442212052} is an apocalyptic number.

It is an amenable number.

431451442212052 is a deficient number, since it is larger than the sum of its proper divisors (349103384716748).

431451442212052 is a wasteful number, since it uses less digits than its factorization.

431451442212052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222685 (or 222683 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 40.

Adding to 431451442212052 its reverse (250212244154134), we get a palindrome (681663686366186).

The spelling of 431451442212052 in words is "four hundred thirty-one trillion, four hundred fifty-one billion, four hundred forty-two million, two hundred twelve thousand, fifty-two".